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EWG's Tap Water Database — 2019 UPDATE

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Arsenic

City of Corsicana

Arsenic is a potent carcinogen and common contaminant in drinking water. Arsenic causes thousands of cases of cancer each year in the U.S. Click here to read more about arsenic.

 

10

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20131.88 ppb221.46 ppb - 2.29 ppb
2014ND20ND
20150.855 ppb220.840 ppb - 0.870 ppb
20160.350 ppb21ND - 0.700 ppb
20170.950 ppb21ND - 1.90 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.004 ppb

The EWG Health Guideline of 0.004 ppb for arsenic was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL) 10 ppb

The legal limit for arsenic, established in 2001, was based on costs for arsenic removal, as calculated at the time that the standard was set. This limit does not fully protect against the risk of cancer due to arsenic exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2013-07-08Q13033830261.46 ppb
2013-07-08Q13033830252.29 ppb
2014-05-15Q1416551004ND
2014-05-15Q1416551003ND
2015-01-28Q15034090040.840 ppb
2015-01-28Q15034090030.870 ppb
2016-02-02Q1604417004ND
2016-02-02Q16044170030.700 ppb
2017-01-17Q1702000001ND
2017-07-26Q17307370031.90 ppb